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Search Results: 1 - 10 of 55306 matches for " 韩秀伶 "
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新疆库地变质橄揽岩中地幔成因的透闪石
沈步明,周云生,邓万明,,张汝藩
科学通报 , 1996,
Abstract:
新疆库地变质橄揽岩中地幔成因的透闪石
沈步明,周云生,邓万明,,张汝藩
科学通报 , 1996,
Abstract:
西藏南迦巴瓦峰地区发现的星叶石
刘焰,马?生,,周湖云,张培善,钟大赉
矿物岩石 , 1997,
Abstract: 在西藏境内喜马拉雅山脉的东端的南迦巴瓦峰地区发现了星叶石。该矿物产出于火成碳酸岩脉中,与白云石、方解石、镁橄榄石、镁铝尖晶石、金云母、韭闪石、磷灰石、镁钛矿、石榴石以及三种未定名副矿物共生。该矿物的晶胞参数为:a0=5.3561(1)?,b0=11.607(4)?,c0=11.851(6)?,α=64.57°(3),β=76.98°(4),γ=85.45°(3)。化学成分(%)为:SiO235.22,TiO211.47,Ai2O31.18,FeO28.90,MnO5.15,MgO1.51,CaO1.75,K2O5.90,Na2O2.46,总和93.54%,化学式为:(K,Na)3(Fe,Mn,Mg,Ca)7Ti2Si8O24(O,OH)7。
吉林龙冈火山群金龙顶子火山喷发物中幔源包体的基本特征及其地质意义
史兰斌,林传勇,,陈孝德
地质论评 , 1999,
Abstract: 龙冈火山群金龙顶子火山喷发发生在距今1500年前,其火山喷发物中所含的幔源橄榄岩包体是我国在最新火山喷发物中所发现的幔源包体。这些包体以普遍含有韭闪石为特征。包体的结构和位错构造反映这些包体在上地幔条件下经历过一定程度的变形作用。包体的平衡温度大多数集中在800~950℃之间,只有个别样品温度达到1050℃;平衡压力大多数集中在?1.0?~1.5GPa之间。由包体平衡温度、压力得到的上地幔地温线稍低于中国东部由新第三纪包体得到的上地幔地温线,但接近第四纪包体得到的地温线。包体在上地幔条件下变形时的差异应力在30~44MPa,应变速率为10??-18?s??-110??-15?s??-1?。角闪石的出现反映上地幔流体的渗透及交代作用。金龙顶子火山发的玄武岩浆直接来自35~50km的上地幔顶部。
东南极拉斯曼丘陵含假蓝宝石紫苏辉石石英岩的发现及其地质意义
仝来喜,刘小汉,徐平,,赵越,任留东,王彦斌
科学通报 , 1996,
Abstract: 本文报道了东南极拉斯曼丘陵地区首次发现的含假蓝宝石紫苏辉石石英岩,对其中假蓝宝石矿物进行了岩相学、矿物学及变质作用研究,并进一步探讨了其形成的地质意义。1地质背景东南极拉斯曼丘陵主要由米洛、布洛克尼斯和斯托尼斯三大半岛及众多岛礁组成(图1),面积约60km~2,属于东南极广泛分布的晚元古高级变质地体的一部分。角闪岩相至麻粒岩相的变泥质岩、变砂岩、石英岩、混合岩化副片麻岩、长英质正片麻岩及镁铁质麻粒岩构成该区主要露头。
大豆异黄酮转化菌株的分离及相关转化酶基因克隆研究进展
Advances in Isolating of Isoflavone Biotransforming Bacteria and Cloning of Genes Encoding Relative Biotransforming Enzymes
 [PDF]

张红蕾,,
Bioprocess (BP) , 2012, DOI: 10.12677/bp.2012.22016
Abstract: 大量流行病学研究表明,大豆异黄酮具有明显的抗癌、抗氧化、抗炎、防护心脑血管以及预防骨质疏松等多种生理功能。被人和其他哺乳动物摄入体内的大豆异黄酮在胃肠道菌群作用下可被降解为二氢黄豆苷原、二氢染料木素、去氧甲基安哥拉紫檀素、雌马酚等不同代谢产物。体内及体外研究结果均表明,大豆异黄酮代谢产物具有比大豆异黄酮更高、更广的生物学活性。迄今,已有大量大豆异黄酮代谢产物产生菌从不同动物胃肠道微生物菌群中被分离出来。目前,人们正专注于从已分离的大豆异黄酮转化菌株中克隆相关转化酶基因。本文将对大豆异黄酮转化菌株分离及相关转化酶基因克隆现状作一综述。
Epidemiological studies have shown that soy isoflavones have many important physiological activities, such as anticarcinogenic, antioxidant, antiinflammation, protection of cardiovascular diseases, prevention of osteoporosis etc. Isoflavones can be converted to different metabolites, including dihydrodaidzein (DHD), dihydrogenistein (DHG), O-desmethylangolensin (O-Dma), equol etc., by gastrointestinal microflora of humans and other mammals. Both in vitro and in vivo studies have indicated that isoflavone metabolites are of stronger and wider bioactivity than that of isoflavones themselves. To date, many specific bacterial strains capable of biotransforming isoflavones have been isolated from the microflora living in gastrointestinal tract of different animals. At present, researchers are focusing on cloning of genes encoding different biotransforming enzymes from isolated bacterial strains responsible for biotransforming isoflavones. This paper will review the isolated bacterial strains for biotransforming isoflavones and cloning of genes encoding for relative biotransforming enzymes.
Simultaneous Determination of Monochlorophthalic Anhydride and Monochlorophthalic Acid in Substrates by High Performance Liquid Chromatography
高效液相色谱法同时测定反应物中的单氯代苯酐及单氯代邻苯二甲酸

YUAN Xiuling,

色谱 , 2006,
Abstract: A high performance liquid chromatographic method has been developed for the simultaneous determination of 3-chlorophthalic anhydride, 4-chlorophthalic anhydride, 3-chlorophthalic acid and 4-chlorophthalic acid. The operating conditions were a Luna-C18 column at 30 degrees C, methanol-0.15 mol/L ammonium dihydrogen phosphate solution (42:58, v/v) as mobile phase with flow rate of 0.8 mL/min, ultra-violet detection at 240 nm. An external standard method was used. Samples were esterified with absolute ethanol at 80-100 degrees C for 15 min. 3-Chlorophthalic anhydride and 4-chlorophthalic anhydride were respectively converted to two isomers of monochloro-O-carboxyl ethyl benzoate, and the monochlorophthalic acids were not esterified under the reaction conditions. The results demonstrated that the recoveries were 99.1%-101.5%; the relative standard deviations ranged from 0.48% to 0.87%; the linear ranges were 3.12-312.4 mg/L, 2.96-222.3 mg/L, 1.86-186.4 mg/L, 1.41-141.0 mg/L for 3-chlorophthalic anhydride, 4-chlorophthalic anhydride, 3-chlorophthalic acid and 4-chlorophthalic acid, respectively. The method was simple, accurate and fast. The six components could be separated completely in about 20 min.
试论中医气的全同性
Studying Identity Principle of Qi in Traditional Chinese Medicine
 [PDF]

, , 金祥
Traditional Chinese Medicine (TCM) , 2013, DOI: 10.12677/TCM.2013.24011
Abstract: 中医之气分类繁多,基于全同性的概念通过分析各类气的基本属性、功能特点及现代化研究,发现各类中医之气具有不可分辨性,推断出中医之气具有全同性。对明晰中医气的概念、完善中医理论体系、促进中医学的发展和指导临床实践具有一定的指导意义。
There are many kinds of categories of Qi in traditional Chinese medicine (TCM). Based on the concept of identity principle, by analyzing the basic attributes, functional characteristics and modern researches of various categories of Qi, we have the presumption that Qi of TCM has identity principle. This provides a theoretical significance for clarifying the concept of Chinese medicine Qi, perfecting the theoretical system of TCM, promoting the development of TCM and guiding clinical practice.
重庆市消毒牛乳卫生质量分析
吴俊,,杨小,谷政
中国公共卫生 , 1995,
Abstract: ?为了给消毒牛乳标准的修汀提供科学依据,我们于1993年对重庆市消毒牛乳进行了卫生学调查。样品来源:在市内近郊七区九个乳品企业随机抽取消毒牛乳44份。检验方法:细菌指标按GB:4789-84检验。理化指标中的比重、脂肪、酸度、乳固体、杂质度照GR500946-85操作;蛋白质用凯氏定氮法,汞用冷原子吸收法。结果判定:按消毒牛乳标准(GB5408-85)评价。
基于sph法的水沙二相流模拟研究进展
,关见朝,樊云
人民黄河 , 2014,
Abstract: ?介绍了水沙二相流运动的研究现状和sph法基本原理,阐述了在水沙运动模拟中引入sph法的可行性,总结了基于sph法的水沙二相流模拟技术研究进展情况。认为:①通过离散含沙量对流扩散方程,可建立悬沙浓度变化sph模型,据此可求解从小到大不同尺度的非均匀挟沙水流的含沙量变化,给出“含沙量粒子”的时空变化信息;②基于质点动力学,可建立悬沙粒子运动sph模型,据此可求解泥沙颗粒在非均匀水流中的小尺度运动方程,给出水沙二相流的时空变化信息。但是,悬沙浓度变化sph模型的局限在于“含沙量”实质上还是时空平均特征;悬沙粒子运动sph模型的局限在于目前它只适用于求解sph粒子总量较少的流动问题。
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